package demo1;

public class Mouse implements USB
{
    @Override
    public void openDevice() {
        System.out.println("打开鼠标！");
    }

    @Override
    public void closeDevice() {
        System.out.println("关闭鼠标！");
    }
    public void click()
    {
        System.out.println("点击鼠标！");
    }
}
